Johnson Matthey develops and manufactures autocatalysts and emission control systems to control gaseous emissions from engines in many on-road and non-road vehicles and other applications including industrial processes.

Manufacturers of new engines and vehicles

Johnson Matthey has over 40 years' experience of working with vehicle and engine manufactures to meet ever more stringent emissions standards. Johnson Matthey offers its OEM customers world-leading catalyst technology tailored to individual requirements backed up by extensive laboratory and bench-engine testing facilities, computer-modelling capabilities and proven manufacturing expertise.

Stationary source and retrofit diesel systems

Johnson Matthey also provides systems and technologies to reduce emissions from stationary sources and from existing diesel buses, trucks, construction equipment, materials handling machines, rail vehicles and generators.

Cars, Vans and Light Trucks

Cars, Vans and Light Trucks

More than 90% of new passenger vehicles are now fitted with autocatalysts, one third of which have been supplied by Johnson Matthey.

2 and 3-wheel Vehicles

2 and 3-wheel Vehicles

With emissions legislation now affecting many of the world's motorcycle markets, Johnson Matthey is ideally placed to supply the catalysts.

Diesel Retrofit

Diesel Retrofit

Johnson Matthey and our partners offer a number of emissions reduction systems that can be fitted to diesel engines already in service.

Trucks & Buses

Trucks & Buses

Johnson Matthey offers products and technologies for the reduction of emissions from trucks and buses.

Non-Road Mobile Machinery

Non-Road Mobile Machinery

Johnson Matthey is a leading supplier of retrofit diesel emissions control systems for non-road machines.

Stationary Emission Control

Stationary Emission Control

Johnson Matthey's Stationary Emissions Control (SEC) group has been providing environmental catalysts and emission solutions to industry, from stationary to non-road sources for over 40 years.